Smoking pipe reamer



March 29, 1932.

C.A.MAL$BURY SMOKING PIPE REAMER Filed Feb. 27, 1950 Patented Mar. 29, 1932 CHARLES A. MALSBURY, or JorLrn, MIssoUar SMOKING PIPE ,R-EAMER Application filed February 27, 1930. Serial No. 431,827.

This invention relates to reamers for removing the deposits that adhere to the insides of smoking pipes.

In the use of pipes for smoking tobacco,

it is well known that as an incident to such use, an objectionable deposit is made on the inside of the pipe bowl and at the bottom of the pipe bowl, and that diiliculty is encountered in removing this deposit, and particularly the deposit at the bottom of the pipe bowl by the use of theusual knife blade which is the only implement normally at hand and available that can be used with any degree of satisfaction for removing this deposit from the pipe bowl. p

The present invention comprises an inexpensive reamer that can be used satisfactorily for scraping and removing the deposit from the inside of a pipe bowl and from the hottom of a pipe bowl thus being adapted for satisfactory use to obtain the result of removing the deposit from the bottom of the pipe bowl, which the usual knife blade will not satisfactorily accomplish.

' An object of the invention is to provide a rcamer comprising a pair of pivoted blades and a handle for manipulating the blades,

whereby the blades will be properly spread to scrape the side wal s of the pipe bowl, and whereby the points of the blades will be adjusted and operated effectively to scrape and remove deposits from the bottom of the pipe bowl.

With the foregoing and other objects in view, my invention comprises a device substantially as illustrated in the accompanying drawings, in which- Fig. l is a side elevation of the reamer.

Fig. 2 is an edge view.

Fig. 3 is a sectional view.

Fig. 4 is a view showing the reamer applied into a pipe bowl.

This reamer is designed and adapted for convenient handling, and comprises a stem 1 having extending upwardly from its lower end a diametrica-l slot 2 and having attached to its upper end handle 3. Preferably, he slot 2 and the handle 3 extend diametrically across the stem 1 in the same direction.

The reaming device comprises a pair of blades & and 5 having their upper ends mounted in the slot-2. These blades are of considerably greater width than the diameter of the stem 1, so that the side edges of the blades project laterally beyond the periphery of said stem 1. The blade d has therein an inclined slot 6 and the blade 5 is formed with an inclined slot 7. The upper ends of these slots are approximately midway between the side edges of the blades, and said slots incline downwardly and laterally, the slot 6 inclining toward one side edge of the blade 4 and the slot 7 inclining toward the opposite side edge of the blade 5 when said blades are assembled in connection with the stem. However, it will be apparent that these blades are of exact duplicate construction and are simply in reversed positions, thus reducing the cost of manufacture. a V r v The lower end of each blade comprises an approximately pointed tip 8 formed by the intersection of curved edges 9. These edges 9 are curved extensions of the side edges of the blades and intersect at the median line of each blade to form the point 8. 1 A pivot member 10 passes through the stem portion at one side of the slot 2 and through the slots 6 and 7 of the blades l and 5 and screws into the opposite side portion of the stem. Thus, the screw constitutes a removable and replaceable pivot onwhich the reamer blades are mounted.

When the reamer blades are placed one upon the other in parallel relationship as shown in Fig. 1, and are suspended from the pivot 10, the slots 6 and 7 extend downwardly and diverge from each other toward opposite sides of the blades. The inclined side walls of said slots constitute rubbing surfaces or cams against which the pivot 10 operates so that reamer, accompanied by sufiicient pressure against the handle to cause scraping action in the pipe bowl, causes the curved edges 9 to remove the deposits from the curved bottom wall portion of the pipe bowl, and the side edges of the blades remove the deposits from the side wall of the pipe bowl.

This device may be economically manufactured and sold and does not involve any complicated features of construction nor any elements that are easily damaged or broken. The device obtains its intended objects and purposes in a highly efficient and satisfactory manner and may be varied within equivalent limits without departure from the nature and principle thereof. I do not restrict myself unessentially, but what I claim and desire to secure by Letters Patent is:

1. A smoking pipe reamer comprising a stem having aslot extending entirely through and longitudinally of the stem from one end of said stem toward the other end thereof, a pair of blades extending side by side into said slot in said stem and each having a slot therein crossing the slot in the other blade and diverging downwardly therefrom when the blades are in parallel side by side relationship, and a pivot mounted in the end portion of said stem and extending through said slots in both of said blades and being operative against the edges of said slots in both of said blades to press the blades laterally in opposite directions.

2. A device of the character described comprising a handle member having an inner end and an outer end and having a transverse slot extending longitudinally from its inner end, a pair of blades arranged side by side in said slot and each having therein a slot intersecting the slot in the other blade and diverging inwardly therefrom when said blades are in parallel side by side relationship, and a pivot attached to the inner end of said handle member and extending through said slots in said blades for moving the blades laterally in opposite directions in the bowl of the smoking pipe.

CHARLES A. MALSBURY. 

